Need help with DNN performance - Performance and Optimization

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Need help with DNN performance

1/4/2010 12:54 PM

Julia

Joined: 6/24/2008

Posts: 4

Need help with DNN performance

Hi,

We are using Community Edition of DotNetNuke for our intranet application. I am finishing developing it and getting ready going into production. Unfortunately, the performance is pretty bad. We have 64 bit Windows 2008 server with 32GB RAM, IIS 7, .NET 2.0, SQL Server 2008. We have about 150 employees, but nobody is using the system yet, and it takes 3-5 seconds to load a page on a good day, and 10-15 seconds on a bad day. I’ve configured all the DNN performance settings as recommended (caching, compression, etc.), checked the scheduler, emptied site log and event log, created KeepAlive service, installed PageBlaster module, increased application pool timeout. All these things improved the performance (it was taking 20-40 seconds to load a page), but it’s still not good enough to go to production. I know there are DNN websites with thousands of users that have excellent performance, so I am sure we can get things better, I just don’t know how. Can anybody help? We are willing to pay, but not sure where to find the right expert.

Thanks,

Julia

1/4/2010 6:24 PM

Sebastian Leupold

www.dnnwerk.de
Joined: 3/8/2004

Posts: 46212

Re: Need help with DNN performance

Julia,

there are a number of factors influencing DNN performance, in fact, a single extension is able to tear down site performance significantly.

How many modules are installed? does it happen on first page only or every page? how about server eventlog and DNN eventlog - any entries associated?

How is app pool recycling configured? How are performance stats / task manager statistics? What is the size of each page, any issues reported in Fiddler?

Cheers from Germany,
Sebastian Leupold

Speed up your DNN Websites with TurboDNN

2/16/2010 7:09 AM

Evgeny Grigoryev

Joined: 1/19/2009

Posts: 45

Re: Need help with DNN performance

I have the same issue. Unfortunately, the performance of the DotNetNuke is VERY BAD!!! PageBlaster module has been resolved some problem. But still takes 3-5 seconds to load a page. I realized, I make a big mistake when choosing a DotNetNuke for our intranet application. This is thread is indicative of performance problem. But I can't see any real solution from DotNetNuke team, how to increase performance (except Mitchel Sellers).

2/16/2010 3:49 PM

Paul Scarlett

www.tressleworks.ca
Joined: 4/16/2004

Posts: 493

Re: Need help with DNN performance

Performance can be really be impacted by the network environment. (IIS through to client browse and all point in-between) What I have done is placed a skin object that report s "generated time" ... if you get very fast generated time, and very slow page display then you know it's a issue with the network environment. My PageRender skin object is from Ventrian

As Mitchel as indicated, you need to ensure you page is rendering as expected -- use some tools like YSLOW (for FireFox) to determine the volume of data being rendered on the page.

You mentioned that there is limited discussion on Performance -- it primarily because most sites are performing within the expectations on the users. Most of the issues encounted by slow performance is NOT related specifically to DNN, but to standard Web and ASP.NET performace issues. And there is a TON of stuff on these topics.

So .. how big are the pages being rendered? What is the average render time? How many files comprise a webpage. Are you graphics sized as needed for the page. Do you see performace difference between different browsers? Which menu system are you using. Are there any exceptions in the event log?

with some detail ... we came help.

Paul.

2/26/2010 7:05 AM

Evgeny Grigoryev

Joined: 1/19/2009

Posts: 45

Re: Need help with DNN performance

So .. how big are the pages being rendered? - 1000-2000

What is the average render time? - First load 5-6 sec (Empty cache)/Refresh F5 - 1.0-1.5/ Next 2-4 sec (Primed Cache)/

How many files comprise a webpage. - HTTP Requests - 36 - 50

Are you graphics sized as needed for the page. - Yes

Do you see performace difference between different browsers? - No

Which menu system are you using. - DNNMenu (http://www.dnngarden.com/). We are already have PageBlaster installed (PageBlaster automatically makes a copy of dynamically built pages and stores them in memory and on disk).

Are there any exceptions in the event log? - No

YSlow for Firebug (FireFox: 5 sec on first load / 1.3 sec on next request.)

URL:http://mysite.com/

Grade

Overall Grade: C (Ruleset applied: YSlow(V2))
F	Make fewer HTTP requests This page has 7 external Javascript scripts. Try combining them into one. This page has 7 external stylesheets. Try combining them into one. This page has 11 external background images. Try combining them with CSS sprites.
A	Use a Content Delivery Network (CDN) Using these CDN hostnames from your preferences: mysite.com,vkocmedb601
F	Add Expires headers There are 38 static components without a far-future expiration date. http://mysite.com/.../module.css http://mysite.com/.../module.css http://mysite.com/Portals/_default/default.css http://mysite.com/.../skin.css http://mysite.com/.../menu.css http://mysite.com/.../stylesheetwidget.css http://mysite.com/.../container.css http://mysite.com/js/dnn.controls.js http://mysite.com/js/dnn.controls.dnnmenu.js http://mysite.com/.../initWidgets.js http://mysite.com/.../header_bg_fixed.gif http://mysite.com/.../bg-c1.gif http://mysite.com/.../bg-top.gif http://mysite.com/.../bg-c2.gif http://mysite.com/.../bg-block-left.gif http://mysite.com/.../bg-block-right.gif http://mysite.com/.../bg-c4.gif http://mysite.com/.../bg-block-btm.gif http://mysite.com/.../bg-c3.gif http://mysite.com/.../bg-dotted-h.gif http://mysite.com/.../bg-dotted-v_slim.gif http://mysite.com/.../title_MySite_intranet.gif http://mysite.com/.../btn_search0.gif http://mysite.com/.../MySite_logo.gif http://mysite.com/.../card_March8.gif http://mysite.com/.../pic-birthday_small.gif http://mysite.com/consumer/pic/com/pic-tel.gif http://mysite.com/consumer/pic/com/global_d.gif http://mysite.com/consumer/pic/sb.gif http://mysite.com/consumer/pic/com/pic-ethics.gif http://mysite.com/consumer/pic/com/pic-sirt.gif http://mysite.com/.../MakeThumbnail.ashx?... http://mysite.com/.../MakeThumbnail.ashx?... http://mysite.com/.../MakeThumbnail.ashx?... http://mysite.com/.../MakeThumbnail.ashx?... http://mysite.com/.../MakeThumbnail.ashx?... http://mysite.com/.../MakeThumbnail.ashx?... http://mysite.com/.../MySite_logo_small.gif
F	Compress components with gzip There are 10 plain text components that should be sent compressed http://mysite.com/.../module.css http://mysite.com/.../module.css http://mysite.com/Portals/_default/default.css http://mysite.com/.../skin.css http://mysite.com/.../menu.css http://mysite.com/.../stylesheetwidget.css http://mysite.com/.../container.css http://mysite.com/js/dnn.controls.js http://mysite.com/js/dnn.controls.dnnmenu.js http://mysite.com/.../initWidgets.js
A	Put CSS at top
A	Put JavaScript at bottom There are 2 Javacript scripts found in the head of the document http://mysite.com/ScriptResource.axd?... http://mysite.com/ScriptResource.axd?...
B	Avoid CSS expressions There are a total of 1 expression http://mysite.com/.../skin.css
n/a	Make JavaScript and CSS external Only consider this if your property is a common user home page. There are a total of 1 inline css There are a total of 14 inline scripts
A	Reduce DNS lookups
B	Minify JavaScript and CSS There are 2 components that can be minified http://mysite.com/Portals/_default/default.css http://mysite.com/WebResource.axd?...
A	Avoid URL redirects
A	Remove duplicate JavaScript and CSS
F	Configure entity tags (ETags) There are 32 components with misconfigured ETags http://mysite.com/.../module.css http://mysite.com/.../module.css http://mysite.com/Portals/_default/default.css http://mysite.com/.../skin.css http://mysite.com/.../menu.css http://mysite.com/.../stylesheetwidget.css http://mysite.com/.../container.css http://mysite.com/js/dnn.controls.js http://mysite.com/js/dnn.controls.dnnmenu.js http://mysite.com/.../initWidgets.js http://mysite.com/.../header_bg_fixed.gif http://mysite.com/.../bg-c1.gif http://mysite.com/.../bg-top.gif http://mysite.com/.../bg-c2.gif http://mysite.com/.../bg-block-left.gif http://mysite.com/.../bg-block-right.gif http://mysite.com/.../bg-c4.gif http://mysite.com/.../bg-block-btm.gif http://mysite.com/.../bg-c3.gif http://mysite.com/.../bg-dotted-h.gif http://mysite.com/.../bg-dotted-v_slim.gif http://mysite.com/.../title_MySite_intranet.gif http://mysite.com/.../btn_search0.gif http://mysite.com/.../MySite_logo.gif http://mysite.com/.../card_March8.gif http://mysite.com/.../pic-birthday_small.gif http://mysite.com/consumer/pic/com/pic-tel.gif http://mysite.com/consumer/pic/com/global_d.gif http://mysite.com/consumer/pic/sb.gif http://mysite.com/consumer/pic/com/pic-ethics.gif http://mysite.com/consumer/pic/com/pic-sirt.gif http://mysite.com/.../MySite_logo_small.gif
A	Make AJAX cacheable
A	Use GET for AJAX requests
D	Reduce the number of DOM elements There are 1434 DOM elements on the page
A	Avoid HTTP 404 (Not Found) error
A	Reduce cookie size
A	Use cookie-free domains
A	Avoid AlphaImageLoader filter
A	Do not scale images in HTML
A	Make favicon small and cacheable